One of the guys going with us on the Aug trip received this email from the US Consular in Gaborone. Things are looking up. I've extracted the pertinent info below.

From: Consular Gaborone
Date: May 15, 2020 at 10:36:33 AM CDT
Subject: Health Alert: U.S. Embassy Gaborone, Botswana (5/15/2020)

Location: Botswana

Event: Phase 3 Re-Opening Permits and Requirements

The Government of Botswana has moved to Phase 3 in its gradual re-opening of the economy. Phase 3 provisionally lasts from May 15 through May 22, during which a whole range of shops and industries may re-open.

All business will require temperature screening, face coverings for entry, cleaning and disinfection two to three times per day, hand sanitizing upon entry and throughout the establishment, and a register of all who enter. We recommend bringing your own pen when you plan to shop or enter other businesses. Keep in mind you may be refused entry if you do not comply with all of the restrictions listed.

Botswana is now divided into nine geographical zones. Travel within the zones still requires an individual permit acquired online through Phase 3 (ends provisionally on May 22). Travel between zones is restricted to essential services and employer-submitted work permits (pink and green permits).

If the threat eases, the restrictions may be lifted more quickly. If the threat exceeds the current level at any point, the original 28-day lockdown rules, or stricter rules, will be put back in place.

There are currently no commercial flights, special flights or government charters available, and borders are still closed for regular travel. Be prepared to shelter in place until commercial flights resume or borders open, which could be several months.